Hand brick-machine.



v, No. 847,618. PATENTEDI MAR. 19, 1907.

. r. w. STEINHOFP.

HAND BRICK MACHINE.

APPLIOATION I'ILED NOV. 28, 1906.

UNITED STATES PATIENT FFICE.

FREDERICK WM. STEINHOFF, OF EDDYVILLE, IOWA, ASSIGNOR TO OSCAR H. SEIFERT, OF EDDYVILLE, IOWA.

HAND BRICK-MACHINE.

No. 847,618. Patented March 19, 1907.

Specification of Letters Patent. A li tion fil d November 23,1905. Serial No. 288,729-

To all whom iv may concern: Be it known that I, FREDERICK WM. STEIN- HOFF, a citizen of the United States of America, and a resident .of 'Eddyville, Wapello county, Iowa, have invented a new and usethe machine, are mounted between the side plates and rest on the stay-rods 22 normally and form false or temporary bottoms for the mold-spaces. Cores 24 are mounted on the central portions of the upper faces of the ful Hand Brick-Machine, of which the folcore-plates and project upward therefrom. lowing is a specification. Blocks 25 are fixed to the lower faces of the The object of this invention is to provide core-plates 23 and depend between the stayimproved means for molding cement brick. rods 22, and an actuating-plate 26 is fixed to A further object of this invention is to proand connects said blocks. vide improved means for molding a plurality In practical use the machine is mounted of composition (such as concrete) brick and on twin supports, such as horizontal scantdepositing the same simultaneously. lings 27 28, arranged parallel with each other My invention consists in the construction, and spaced apart to permit the actuatingarrangement, and combination of elements plate and blocks to depend between them in hereinafter set forth, pointed out in my order that the core-plates may rest on and be claims, and illustrated by the accompanying supported by the stay-rods 22. The molddrawing, in whichspaces are then filled with concrete, cement, Figure 1 is a perspective of the complete or other desired composition, which is propmachine preparatory to molding. Fig. 2 is erly tamped and screeded flush with the upa perspective of the machine preparatory to per margins of the side plates, end plates, and dumping, the dotted lines indicating the popartitions. The machine is then inverted sition of the machine when the brick are deupon a pallet 29, as shown in Fig. 2, manuposited. Fig. 3 is a longitudinal section, and ally, the core-plates are pressed on the Fig. 4 a cross-section, of the machine. Fig. 5 brick by pressure of the thumbs on the actuis a detail view illustrating the use of edge ating-plate, and the mold-plates are lifted molding in the mold. away from the brick (into the position shown In the construction of the machine, as by dotted lines) by lifting force of the fingers shown, the numerals 1O 11 designate side applied to the flanges 17 18 of the end plates plates of a length somewhat greater than the i 14 15, and then the machine is removed from combined lengths of a plurality of brick to be the brick and repositioned on the twin supmolded in the machine and preferably made ports for refilling. of sheet metal. The side plates 10 11 are The brick may placed parallel with each other and spaced apart a distance equal to the width of brick to be molded in the machine. Flanges 12 13 are formed on and extend inward from the lower margins of the side plates 10 11. End plates 14 15 are provided with tenons or tongues 16, extending through and clenched upon the side plates. Flanges 17 18 are formed on and extend outward from the lower margins of the end plates 14 15 and rest at their ends on the flanges of the side plates connected thereby. Partitions 19 20 are provided with tenons or tongues 21, extending through and clenched upon the side plates, and said partitions are arranged parallel with and divide the space between the end plates 14 15. Stay-rods 22 are mounted across and connect the lower portions of the side plates 10 11 between the partitions and between said partitions and the end plates. Core-plates 23, one for each mold-space in be carried away and deposited for curing on the pallet 29, the cavities in the brick formed by the cores 24 being uppermost. Then when the brick are sprinkled, as is indicated in curing cement products, the cavities formed by the cores retain water, which aids in the process of ouring. The cavity in-the brick effects a saving of material, lessens the weight of the brick, and engages the mortar of which the joints in a wall are formed, and makes a stable mor tar-lock. The cores 24 are tapering both in width and length not only to facilitate removal from the brick, but to act as wedges and crowd the composition outward during the operation of tamping.

I claim as my invention 1 A brick-molding machine comprising inwardly-flanged side walls, outwardly-flanged end walls resting upon the side flanges, partitions having tongues passing through the side walls, cross-rods connecting the side walls above the flanges thereof, movable botposed within said walls, and tie toms between the partitions and adapted to connecting said side walls and fo normally rest on said cross-rods, blocks eX- port for said mold-plate.

tending from said bottoms between the cross- Signed by me at Eddyville, Iowa, this 5 rods and side-wall flanges, and an actuating- I 19th day of July, 1905.

plate connecting said blocks. FREDERICK WM. STEIN HOFF.

2. In a molding-machine, a body comprisitnesses: ing opposite side walls inwardly flanged at N. B. MCNEER, their lower edges, a movable mold-plate dis- IIARRY MILLER.

-rods firmly 10 run mg a sup- 

